Call it a choice between "Black Panther" and blackouts in the rollout of super-fast 5G internet technology. America's tech titans are lined up against electric utilities in a noisy fight for control of wireless spectrum power companies say is critical for communications if a natural disaster darkens a city or hackers breach the grid.

Call it a choice between "Black Panther" and blackouts in the rollout of super-fast 5G internet technology. America's tech titans are lined up against electric utilities in a noisy fight for control of wireless spectrum power companies say is critical for communications if a natural disaster darkens a city or hackers breach the grid.